BK-3

Backing Keyboard

BK-3

Your Personal Backup Band

Perfect for solo entertainers and home hobbyists alike, the BK-3 Backing Keyboard brings a new level of performance to entry-level auto-accompaniment instruments. Featuring a wide range of quality onboard sounds and rhythms, song playback via USB memory, built-in speakers, and more, this portable, self-contained keyboard puts the power of a full ensemble under your fingertips. From one-person shows to social gatherings to personal practice, the BK-3 brings endless hours enjoyment for playing all musical styles.

Video Library

Wide Range of Sounds and Rhythms Onboard

The BK-3 is filled with sounds and rhythms covering an extensive range of music genres from around the world, including Eastern Europe, Latin America, and Asia. There are over 850 tones and 50 drum kits built in, providing a universe of voices for melody playing and accompaniment. Compatibility with GM2, GS, and XG Lite formats ensures high-quality playback with Standard MIDI Files.

Play Backing Tracks and Rhythms via USB Memory

The BK-3 can play a variety of external backing formats from optional USB memory, including WAV and MP3 audio, SMF, and Roland rhythms (BK, E, G, and VA series). Playback tempo and song key can easily be adjusted to suit your vocal range or performing needs, even with audio files. In addition, a Center Cancel function reduces the volume of vocals in commercial WAV/MP3 songs, ideal for karaoke singing and minus-one playing.

Easy Audio Recording

A dedicated front-panel button makes it simple to record audio directly to USB memory, allowing you to capture full-ensemble BK-3 performances any time you wish for self-evaluation and sharing with friends and family. Your recordings are saved as CD-quality WAV data, making it easy to transfer them to your computer for burning audio CDs.

Keyboard
Keyboard type: 61 keys (velocity sensitive)
Keyboard Modes: Whole, Split, Dual
Display type
132 x 64 dots, Graphic monochrome LCD (with backlit)
Sound generator
Max. Polyphony
128 voices (GM2/GS/XGlite compatible)
Sounds
851 tones; 53 Drum Sets
Multitimbral parts
2 keyboard parts (UPP, LWR) + 16 song parts
Master Tuning
415.3 to 466.2 Hz
Key Control (Transpose)
–6 to +5 in semitones (for audio/MIDI data)
Tempo change
20 to 250 BPM for SMF and rhythms
75 to 125 % for mp3 and WAV files
Effects
Real Time parts (UPP, LWR)
Reverb and Chorus: depending on Rhythm/SMF Reverb Chorus Macro
1 Mfx (84 Mfx Editable Macro) (selectable via Tone Part Mfx)
EQ
Rhythms/SMF section
Reverb: 8 types
Chorus: 8 types
2 Mfx (84 Mfx Editable Macro)
EQ
Backing section
Rhythms
250 in 5 “Rhythm” families (localized rhythms for specific areas are included in the WORLD 1 and WORLD 2 families)
Real-time player
Rhythms (STL), SMF (Format 0/1), KAR, mp3, WAV
Key Control
–6 to +5 in semitones (for rhythm, smf, mp3/wav)
Tempo Change
20 to 250 BPM for SMF and rhythms
Time Stretch
75 to 125 % for mp3 and WAV
One Touch memories
4 suitable tones for each rhythm (Programmable)
Rhythm and SMF Makeup Tools
Instrument-oriented editing
Track Mute
for Rhythms/SMF
Center Cancel
for mp3/WAV
Audio Recording
Media
USB Flash memory.
Save format
Audio files: WAV (44.1 kHz, 16-bit linear)
Metronome
Time Signature
1 to 32/16, 1 to 32/8, 1 to 32/4, 1 to 32/2
Mode
Always, Play
Count In
Off, 1 bar, 2 bar
Performance Memories
Performance Lists
Unlimited number (storage on USB memory)
Over 500 “Music Assistant” memories (internal memory)
5 “Factory Song” memories (internal memory)
Performance memories per List
Max. 999
Other
Search function
Quick location of Rhythms and Songs on the connected USB memory
Demo
Yes
Lyrics on Internal Display
SMF, mp3/WAV
Panel Controls
Volume Knob
Balance (Backing/Keyboard) Buttons
Connectors
Phone/Output Jack: 1/4” phone type (TRS connector)
USB COMPUTER port (Type B, reception and transmission of MIDI data)
USB MEMORY port (Type A, data storage devices)
MIDI IN, MIDI OUT (Visual Control function)
Foot Pedal jack: PEDAL HOLD/SWITCH (assignable)
Speakers
2 x 10 cm
Rated power output
2 x 7.5 W
Power supply
AC adaptor
Power consumption
1,200 mA
Auto Off function
Off, 10 min, 30 min, 240 min.
Accessories
Owner’s Manual
AC adaptor
Power cord (for connecting the AC adaptor)
Music rest.
Options (sold separately)
USB flash memory (M-UF-series)
Wireless USB Adaptor (WNA1100-RL)
Pedal Switch: DP-series
Footswitch: BOSS FS-5U
Size and Weight (excludeing AC adaptor and music rest)
Width
1044 mm
41-1/8 inches
Depth
317 mm
12-1/2 inches
Height
129 mm
5-1/8 inches
Weight
7.5 kg
16 lbs. 9 oz.
Size and Weight (including music rest)
Width
1044 mm
41-1/8 inches
Depth
408 mm
16-1/8 inches
Height
318 mm
12-9/16 inches

Downloads

Brochures

Updates & Drivers

Support

If you have questions about operating your Roland product, please check our Knowledge Base for answers to the most common questions.
You can also contact our Product Support department by phone or email.
In addition, we have a library of Owner’s Manuals and Support Documents that you can download and reference.

Owner's Manuals